The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2026
Filed:
May. 12, 2023
Applicant:
S&c Electric Company, Chicago, IL (US);
Inventors:
Michael Quinlan, Bolingbrook, IL (US);
Yoav Sharon, Evanston, IL (US);
Assignee:
S&C Electric Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 25/00 (2006.01);
U.S. Cl.
CPC ...
G01R 25/00 (2013.01);
Abstract
A system and method for generating phasors having a phase angle and magnitude from a sinusoidal power signal, and using the phasors to generate a frequency and RoCoF of the power signal. The system and method provide improvements over known systems and methods by correcting the frequency of sensor signals, providing a simplified phasor correction equation, reducing errors in a non-recursive DFT algorithm, improving frequency estimation by spacing out DFTs, correcting the sampling rate, providing linear interpolation of frequency and/or providing a variable DFT window length.